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N76 [4]
3 years ago
8

Write the equation 4x − 3y = 12 in the form y = mx + b.

Mathematics
2 answers:
Rudiy273 years ago
5 0

Answer:

a is the correct answer   y = \frac{4}{3}   x     -       4

Step-by-step explanation:

To write the equation 4x - 3y  = 12 in the form y=mx + b,  we need to make y subject of the formula in the equation 4x - 3y = 12;

4x - 3y = 12

subtract 4x from both-side of the equation;

4x -4x -3y  =  12 - 4x

-3y  =  12- 4x

we want to make the left hand side of the equation positive, so we multiply through by a negative sign.

The equation becomes;

3y = -12 + 4x

We can rearrange this equation, hence;

3y = 4x - 12

Divide through by 3

\frac{3y}{3}    =   \frac{4x}{3}  -   \frac{12}{3}

(On the left hand side of the equation, the 3 numerator will cancel the 3 denominator leaving us with just y, on the right hand side of the equation 3 will divide -12 which will give us -4)

y  =  \frac{4}{3}  x    -    4

Norma-Jean [14]3 years ago
3 0

Answer:

Step-by-step explanation:

a- y equals start fraction four over three end fraction x minus four

Hope this helps!

If you have further questions, let me know!

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Help me pls. Thanks!
user100 [1]

Answer:

Price per carton * number of cartons

Step-by-step explanation:

dont have time to write it all here

6 0
3 years ago
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grade 5 math. How would I write a ratio for a project when asked to compare prices from two stores, IE 32 slices of texas toast
REY [17]
To compare, think of the ratios as a fraction. so it is 32 slices per $7.99.
You can also say $7.99 per 32 slices.
so it can be  ̲7̲.̲9̲9̲ ̲   or the other way around.
                       32
To find the unit price, or the price of 1 item, you have to divide the price by the amount.
So 7.99 divided by 32 is <span>0.249687, but we don't have thousandths of a cent, so we round to the hundredth.
$0.25 is the unit price, or the price of 1 toast, rounded to the nearest cent.

So let's try another one, this time we have 2 different rates, and we will compare them.

So let's say we are buying cheese. Store A sells 12 blocks of cheese for $14.99, and Store B sells 20 blocks for $23.99.
So first we have to find the unit rate for each.

             Store A                                 Store B
         14.99 per 12                        23.99 per 20
                                         
             </span> ̲1̲4̲.̲9̲9̲ ̲                                  ̲2̲3̲.̲9̲9̲ ̲<span>
                 12                                         20

14.99 / 12 is </span>1.24916                    23.99 / 20 is <span>1.1995</span>
<span>$1.25, if rounded to the cent.    $1.20, if rounded to the cent
</span>1 block is $1.25 in Store A.         1 block is $1.20 in Store B

Store B sells for cheaper.

Hope that helps.
7 0
3 years ago
How do you calculate elapsed time?
Valentin [98]
First tell me what elapsed time is
4 0
3 years ago
Read 2 more answers
Change the polar coordinates to rectangular coordinates. (a) (3, 5π/6)
elixir [45]
Ok so given the point (r, theta)
The corresponding Cartesian point is (r*sin(theta), r* cos(theta)) you can think about this by analyzing the points on a unit circle which is a graph of a polar circle with radius 1 and angle theta
6 0
3 years ago
What's 9-2x=35<br><br><br><br><br><br>please need help and explain it ​
Degger [83]

Answer:

x = -13

Step-by-step explanation:

9 - 2x = 35

<u>-9           -9 </u>

-2x = 26

divide by -2

x = -13

6 0
3 years ago
Read 2 more answers
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